Dial House is a sixteenth-century farm cottage in the countryside surrounding Epping Forest in south west Essex, England. The house is situated in Ongar Great Park, an area covering five by three kilometers that Oliver Rackham describes as possibly having been the "prototype deer park", it having been mentioned in an "Anglo-Saxon will of 1045". During the Victorian era, Dial House was the home of the agricultural writer Primrose McConnell, tenant farmer and author of The Agricultural Notebook (1883), recognized as a standard reference work for the European farming industry.